Which of the following biologically important compounds is chiral?
A) 2-aminopropanoic acid
B) 2,3-dihydroxypropanoic acid
C) 3,5-dihydroxy-3-methylpentanoic acid
D) all of them
D
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Which of the following statements does not describe sound science?
A) A scientist collects data and describes the characteristics of a particular type of lung cancer. B) A scientist attends a scientific meeting to reveal the effectiveness of a new lung cancer treatment. C) A scientist accepts funding from an industry and tries to generate data to support their products for treating lung cancer. D) A scientist conducts experiments to determine if a new drug is effective against a certain type of lung cancer.
Most of the water on Earth is found ________
A) underground B) in lakes and rivers C) in polar ice caps D) in oceans
The reductions in costs associated with the production of output in large quantities is called ________ ________ ________
Fill in the blank(s) with correct word
Treeless, bitterly cold most of the year, long and dark winters, low-growing plants, and permafrost are the characteristics of which of the following?
A. tall-grass prairie B. tundra C. short-grass prairie D. taiga E. savanna